Indiana Pollen by City
Most of Indiana's cities read the warm, humid subtropical Southeast pollen calendar: tree pollen peaks Feb–Apr, grass Apr–Sep, and ragweed Aug–Nov — an unusually long, overlapping season — the warm climate stretches grass across much of the year and pushes ragweed deep into autumn. Every city below has its own page with today’s verdict and the full 12-month season calendar.
Cities in Indiana
| City | Tree pollen season | Population |
|---|---|---|
| Indianapolis | Mar–May | 1,767,321 |
| Fort Wayne | Mar–May | 339,694 |
| South Bend | Mar–May | 279,977 |
| Evansville | Mar–May | 204,607 |
| Hartford City | Mar–May | 5,794 |
| Bremen | Mar–May | 4,642 |
Our dataset lists 974 places in Indiana; the 6 above have a page. For a smaller town, the nearest city above is the closest match.